Made from Grade-8 alloy material and heat-treated for superior strength, these harmonic balancer bolts feature a high hex head to prevent socket slippage while rotating the engine when degreeing a cam or adjusting the valves. An extra thick, parallel ground washer is provided to allow for a more accurate, uniform torque. Black plated finish, complete with split lock washer to prevent loosening caused by vibration.

1979-1983
GMC C3500 PICKUP

Rated 5 out of
5 by
Hombre from
Mr. Gasket - 945G Harmonic Balancer BoltNice Grade 8 Cadmium gold plated bolt and nice thick flat washer and lock washer to hold the new Harmonic Balancer on with. A real nice compliment to detail new engine assembly and peace of mind knowing that it will do it's intended job of holding the balancer on.